Academic work
Theses, dissertations, preprints, research papers and manuscripts.
Digital proof of existence
Your work deserves proof of time.
Your creation. Your history. Your proof. Register the digital fingerprint of theses, articles, books, software and documents. Choose affordable Bitcoin/OpenTimestamps or fast Algorand confirmation.
✓ Original file stays with you✓ SHA-256 cryptographic hash✓ Free public verification
Use cases
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Technical evidence for every kind of work.
Preserve evidence that a version existed and was unchanged. Registration does not replace official authorities or independently establish authorship.
Creative works
Books, photography, music, source code, projects and manuscripts.
Documents and certificates
Integrity evidence for existing certificates and diplomas; supplementary validation only.
Accessible pricing
Choose affordability or speed.
Verification is free for both plans. BRL prices apply to Brazil; orders require activation of checkout and the selected network.
01 / STANDARD
Standard · Affordable
R$ 1,99
per recordBitcoin / OpenTimestamps. Final proof usually takes hours and can take longer.
Coming soon02 / EXPRESS
Express · Fast
R$ 4,99
per recordAlgorand. Confirmation normally takes seconds; delivery requires a live integration and independent verification.
Coming soonPlanned Standard bundles: 5 for R$ 7.90 · 20 for R$ 24.90 · 100 for R$ 99.00. Bundle checkout is not yet active.
How it works
Simple to register. Transparent to verify.
01
Choose your file
The original file need not leave your device.
02
Calculate SHA-256
Your browser computes a cryptographic fingerprint.
03
Choose the network
Standard or Express based on price and urgency.
04
Verify the proof
Check actual proof status and compare the file hash.
Public verification
Evidence should be verifiable.
Every record shows the document hash, network and technical status. Payment is not proof of network confirmation.
Technical proof of existence alone does not establish authorship, originality, exclusive rights or academic recognition. Official registrations follow separate requirements.
Verify ↗RR-AAAA-XXXXXXXXXXXXXXXX
Illustration only — not blockchain verified